I've written before about the girls' attitude toward their birth fathers:
No real change there -- even with today being Father's Day, Zoe asked some questions about her birth mother (She wanted to know, since she's learning so much more Chinese, if we could go to China and ask at every house in the city whether they know who her birth mother might be. She also wanted to know how her birth mother would be related to a child Zoe adopted from China (we had talked earlier about second cousins, and she LOVES figuring out family relationships!))
Neither Zoe nor Maya seem very interested in their birth fathers. Is that because we don't have a dad in our family? I've always tried to include discussion of their birth fathers, thinking it might make them feel more "normal" -- "no, you don't have a daddy, but you do have a birth father. It takes a man and a woman to make a baby, and your birth mother and birth father made you." But they don't seem to invest much in that idea. Zoe will talk or write about her birth parents, plural, but her acute grief seems reserved for the loss of her birth mother.
So did birth fathers come up today? Do your kids ask/talk about them?